Dunal pre-forest thickets of nemoral affinities of the coastal dunes of the western Palaearctic region formed of species of genera Ulex, Sarothamnus, Rubus, Ligustrum, Daphne, Sambucus. Codes of subdivisions of unit F3.2 can be used, in addition to unit B1.612, to specify the habitat. Listed elsewhere are dunal formations of heaths (units B1.51, B1.52), sea-buckthorn (Hippophae rhamnoides, unit B1.611) or creeping willow (Salix arenaria, unit B1.62).